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Your cart is empty.Introducing the Spring Outside Caliper by POWERTEC. This handy precision measurement tool, also called an external caliper, allows the user to quickly and easily measure, mark and transfer the outer dimensions of objects in a vast array of projects. Great for use with irregular, round and odd shaped projects, as well as when determining the OD of pipes/tubes, mortises, spindles, bowls, and vases. The possibilities are endless. These exclusive outside calipers for measuring anything are a great addition to any shop. Easy Use, Dependable Precision To use, lightly squeeze the caliper to release tension and slide the specially-machined nut to the rough location of your measurement. Then fine-tune and tighten to lock in the setting. Proceed to measure the gap with desired scale for accurate determination. It’s that easy. Easily transfer the specifications to makesure the diameter of your project stays in spec, to replicate project dimensions, or when creating layouts for future work. Our outside calipers offer the utmost in an accurate and easy user experience. Great for woodworkers (essential in woodturning projects), metal workers, machinists, plumbers, craftsman, builders, artists, makers, DIY’rs of all types, and more. Rugged Durability Constructed of top-grade carbon steel with solid brass fittings, this durable outside caliber 8 inch provides dependablehigh performance through many years of use. The fulcrum, spring and marking/measuringpoints are precision ground of hardened, tempered steel for flawless measuring verification, scoring, and transfer, through many years of successful production. POWERTEC is a leading manufacturer of high quality measurement equipment, hand tools, woodworking machines, gear, and accessories. We are committed to exceeding expectations, while bringing the latest innovation, technology, and product development to the industry.